Scratched off acne and now there are scars! How do I get rid of them?

Patient: I’m a 17 year old guy and I had some acne on my forehead from stress and I scratched it all off!! But there were these nasty scars left behind and now I have these black scars all on my forehead from the scratched off pimples! How can I get them off as quickly as possible??

Doctor: